JP6629367B2 - Assembly device and method - Google Patents

Description

  The present invention relates to an assembling apparatus and method for assembling target members.

  A rotating electric machine such as a motor or a generator includes a stator formed in a cylindrical shape, and a rotor rotatably disposed inside the stator. A coil is formed by inserting a leg of a U-shaped coil segment (electric conductor) into a slot provided in a stator core of a stator and then bending and welding a protruding portion in a circumferential direction.

  The apparatus and method for aligning electric conductors of Patent Literature 1 include a plurality of holding units that hold one leg of a plurality of U-shaped electric conductors, and a moving unit that moves the plurality of holding units in a radial direction. When aligning a plurality of electric conductors, the holding portion holding one leg is moved inward in the radial direction, so that the plurality of electric conductors are arranged in an annular shape while overlapping in the circumferential direction.

International Publication No. 2014/010624

  However, in Patent Literature 1, a moving unit that moves a holding unit that holds one leg of the electric conductor is required, and the device is complicated.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an assembling apparatus and method capable of assembling a plurality of target members with a simple structure.

  An assembling apparatus of the present invention is an assembling apparatus for assembling a plurality of target members having two legs and a connecting part connecting the two legs, and supporting the legs of the target member. A plurality of support arms each having a support portion and a base portion provided separately from the support portion; a guide portion for guiding the base portion; and a base portion of each of the plurality of support arms, the shape of the guide portion. A moving portion that moves along the guide, wherein the guide portion is formed in a first arc shape, and the support portion is located outside the base portion in the radial direction of the first arc, A first guide portion that guides each of the bases of the plurality of support arms so as to be movable in a circumferential direction of the first arc; and a center of curvature opposite to the center of curvature of the first arc across the guide portion. On the side, formed in a second arc shape, It is connected to the serial first guide portion, each of said base of said plurality of support arms, characterized in that it comprises a second guide portion for movably guides, the said second arc of the circumferential direction.

  In the present invention, the first guide portion guides each base portion of the plurality of support arms with the support portion located outside the base portion, and the second guide portion guides the support portion inside the base portion. Guide the base of each of the plurality of support arms. Therefore, in the first guide portion, when the base of the support arm moves by a predetermined length, the movement length of the support portion outside the base is longer than the predetermined length. On the other hand, in the second guide portion, when the base of the support arm moves by the predetermined length, the moving length of the support portion inside the base is shorter than the predetermined length. For this reason, when a plurality of support arms are moved from the first guide section to the second guide section, the interval between the support sections of adjacent support arms becomes narrow.

  According to the present invention, since the support portion supports the leg portion of the target member, the distance between the support portions of the adjacent support arms is reduced, so that the distance between the leg portions of the adjacent target member is reduced. can do. Thereby, a plurality of target members can be assembled in a smaller range than when guided by the first guide portion.

  When the radius of curvature of the second guide portion is changed, the distance between the support portions of adjacent support arms after moving from the first guide portion to the second guide portion changes. Therefore, by changing the radius of curvature of the second guide portion, a plurality of target members can be gathered in a desired range. For example, the plurality of target members can be gathered so as to overlap the connecting portions.

  Further, it is preferable that the first guide portion and the second guide portion are formed by grooves, and the base is formed by rollers that roll in the grooves.

  According to this configuration, the friction is reduced when the support arm is moved, as compared with a configuration in which the base is formed of a non-rotatable shaft, so that rattling can be suppressed.

  Further, it is preferable that the support arm includes a connecting portion that connects to the roller of the adjacent support arm.

  According to this configuration, since the adjacent support arms can be moved in a connected state, the displacement of the plurality of support arms when assembled can be suppressed.

  Further, it is preferable that a holding portion for holding the support arm in the vertical direction is provided.

  According to this configuration, the displacement of the support arm in the vertical direction can be suppressed.

  Further, it is preferable that the support section includes a first support section that supports one of the two legs, and a second support section that supports the other of the two legs.

  According to this configuration, since both of the two legs of the target member are supported, the target member can be stably and reliably supported.

  Furthermore, it is preferable to provide a pull-out prevention mechanism for preventing the leg from falling out of the support.

  According to this configuration, it is possible to prevent the leg of the target member from falling out of the support.

  The support portion includes a first support portion that supports one of the two leg portions, and a second support portion that supports the other of the two leg portions. It is preferable that a pressing plate provided between the first supporting portion and the second supporting portion and abutting on one of the legs and the other of the legs is provided.

  According to this configuration, it is possible to prevent the leg of the target member from falling out of the support with a simple structure.

  Further, it is preferable that a positioning section for positioning the support section of each of the plurality of support arms at a predetermined position is provided.

  According to this configuration, the support portion of the support arm can be positioned at the predetermined position, and the target member can also be positioned at the predetermined position.

  An assembling method according to the present invention is an assembling method for assembling a plurality of target members having two legs and a connecting portion connecting the two legs, wherein the supporting member supports the legs of the target member. A supporting step of supporting the target member by a plurality of supporting arms having a base and a base provided apart from the supporting part; and a guide part for guiding the base, and provided in a first arc shape. A guide formed so that the bases of the plurality of support arms can move in the circumferential direction of the first arc in a state where the support is located outside the base in the radial direction of the first arc. An arranging step of arranging the plurality of support arms by a first guide portion, and a second center provided on the guide portion and having a center of curvature opposite to the center of curvature of the first arc with the guide portion interposed therebetween. Formed in an arc shape of The base of each of the plurality of support arms is moved to a second guide connected to a guide and guiding each of the bases of the plurality of support arms so as to be movable in a circumferential direction of the second arc. An assembling step of assembling the plurality of support arms and assembling the plurality of target members.

  According to the present invention, in the disposing step, the first guide part guides each base part of the plurality of support arms in a state where the support part is located outside the base part. When the plurality of support arms are moved from the first guide portion to the second guide portion in the assembling step, the adjacent support arms are guided. Can be narrowed. Since the support portion supports the legs of the target member, the distance between the legs of the adjacent target members can be reduced by reducing the distance between the support portions of the adjacent support arms. Thereby, a plurality of target members can be assembled in a small range.

The perspective view showing the stator of the rotating electrical machine in which the coil segments gathered by the gathering device of the present invention were inserted. The perspective view showing a stator core and a coil segment. The perspective view showing a coil segment. FIG. 3 is a perspective view showing a projecting portion of a coil segment. FIG. 3 is a perspective view showing a projecting portion of a coil segment. FIG. 5 is a top view showing the collecting device in a state where the support arm is guided by a first guide unit. FIG. 9 is a top view showing the collecting device in a state where the support arm is guided by a second guide unit. The perspective view which decomposes | disassembles and shows an assembly apparatus. The perspective view which decomposes | disassembles and shows an assembly apparatus. FIG. 4 is a perspective view showing a support arm, a coil segment, a pullout prevention plate, and an insertion positioning section. FIG. 4 is a top view showing the assembly device in a state where the coil segments are supported by the first support arm. FIG. 9 is a top view showing the assembly device in a state where the coil segments are supported by the second support arm. FIG. 9 is a top view showing the assembly device in a state where the coil segments are supported by the third support arm. FIG. 13 is a top view showing the assembly device in a state where the coil segments are supported by the fourth support arm. FIG. 2 is a block diagram showing an electrical configuration of the aggregation device. FIG. 3 is a top view showing the assembly device in a state where the coil segments are assembled.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, an example of the structure of the rotating electric machine will be described.

  As shown in FIGS. 1 and 2, a rotating electric machine such as an electric motor or a generator includes a cylindrical stator 1 and a rotor (not shown) rotatably disposed inside the stator 1. .

  Stator 1 includes stator core 2 and coil 3. The stator core 2 has a cylindrical shape, and is provided with a plurality of slots 2a penetrating in the rotation axis direction at intervals in the circumferential direction. Each slot 2a is formed such that the radial cross-sectional shape of the stator core 2 extends radially from the center side of the stator core 2 in the radial direction, and the inner periphery of the stator core 2 is formed through a slit 2b formed in the stator core 2. It communicates with the surface.

  The coil 3 is formed by inserting the coil segment 4 shown in FIG. 3 into the slot 2a from one side, and welding a portion projecting from the other side of the slot 2a by twisting in a circumferential direction.

  A plurality of, in this embodiment, four, coil-shaped conductors (rectangular conductors) are arranged in a single row so that the wider surfaces thereof face each other, and the coil segments 4 are formed into a U-shaped bundle. It has a pair of legs 4a, 4a and a head 4b connecting one ends (upper ends in the figure) of both legs 4a, 4a.

  Note that the coil segment 4 may be a bundle in which a plurality of rectangular wires are aligned in the width direction. For example, the coil segments 4 are formed by aligning a plurality of rectangular wires in a row such that the narrower surfaces face each other. There may be.

  At the center of the head 4b, an S-shaped portion 4c that is curved in an S shape in the direction in which the rectangular wires are aligned is formed. The head 4b is inclined downward from the center (the center of the S-shaped portion 4c) toward the two legs 4a. The leg 4a of the coil segment 4 is inserted into the corresponding slot 2a from one side. From the other end of the slot 2a, a leg 4a of the coil segment 4 projects.

  The protruding portion 4d of the leg portion 4a protruding from the other end of the slot 2a is bent in the circumferential direction of the stator core 2 by a bending device (not shown) as shown in FIG. Are welded by a welding device (not shown). In this way, the stator 1 in which the eight (eight) coil segments 4 are stacked in the radial direction is completed. Here, from the inner side to the outer side in the radial direction, one layer, two layers,...

  Note that the coil 3 of the present embodiment is a three-phase coil composed of a U-phase, a V-phase, and a W-phase, and the legs 4a of the coil segments 4 inserted into the respective slots 2a are circumferentially U-phase, U-phase. Phase, V phase, V phase, W phase, W phase. FIG. 4B shows only one phase coil (for example, a U phase coil) of the three phases.

[Assembly device]
Next, as shown in FIGS. 5 and 6, a description will be given of an assembly device 10 for assembling a plurality of, for example, 18 coil segments 4.

  The assembling device 10 includes a first arrangement portion 11 having an outer peripheral portion having an arc shape, a second arrangement portion 12 having an outer peripheral portion having an arc shape, and 18 supports arranged by the first arrangement portion 11 and the second arrangement portion 12. And an arm 13. The first arranging part 11 and the second arranging part 12 are attached to a base (not shown). The 18 support arms 13 each support the coil segment 4.

  The first arranging part 11 arranges the eighteen support arms 13 in a fan shape (see FIG. 5), and the second arranging part 12 arranges the eighteen support arms 13 so as to gather (see FIG. 6). In the present embodiment, the first arrangement portion 11 and the second arrangement portion 12 are formed integrally, but may be provided separately.

  The assembling device 10 includes a sending unit 14 that sends the support arm 13 in the counterclockwise direction D1 in the first placement unit 11, an upper cover 15 that covers upper portions of the first placement unit 11 and the second placement unit 12, and a control device 16 ( FIG. 14). The control device 16 controls the collective device 10 as a whole. When the upper cover 15 is attached, the support arm 13 is sandwiched between the first disposing portion 11 and the second disposing portion 12 and the upper cover 15. Thereby, the backlash of the support arm 13 in the vertical direction is suppressed.

  In the present embodiment, among the 18 support arms 13, the support arm 13 that is the most counterclockwise direction D1 side in FIG. 5 is referred to as a first support arm 13, and the first support arm 13 is the clockwise direction D2 side. The support arm 13 linked to the first support arm 13 is referred to as a second support arm 13, and the support arm 13 closest to the clockwise direction D2 in FIG. 5 is referred to as an eighteenth support arm 13.

  As shown in FIGS. 7 and 8, the first disposition portion 11 has an arc-shaped groove shape that guides the support arm 13 so as to be rotatable in the counterclockwise direction D <b> 1 around the center of the circle of the first disposition portion 11. The first guide portion 11a is formed. Further, the first arrangement portion 11 is formed with an opening 11b into which the main body portion 14a of the delivery portion 14 is inserted.

  The second arranging portion 12 is formed with an arc-shaped second guide portion 12a that guides the support arm 13 so as to be rotatable clockwise D2 about the center of the circle of the second arranging portion 12 as a rotation center. The second guide portion 12a is formed continuously with the first guide portion 11a.

  The support arm 13 includes a first arm 13a, and a second arm 13b connected to one end of the first arm 13a. The first arm 13a has a first holder 13c formed with a concave portion into which one leg 4a of the coil segment 4 is inserted.

  The second arm 13b is provided with a second holder 13d having a recess into which the other leg 4a of the coil segment 4 is inserted. Note that at least one of the first holder 13c and the second holder 13d may be formed.

  At the other end of the first arm 13a, a first plate 13e and a second plate 13f are formed. The first plate portion 13e is formed below the second plate portion 13f, and the first plate portion 13e and the second plate portion 13f are formed in a stepped shape.

  A base 21 having a roller shape is rotatably mounted on the bottom surface of the first plate portion 13e in a counterclockwise direction D1 and a clockwise direction D2. A link shaft 22 coaxial with the base 21 is provided upright on the upper surface of the first plate portion 13e.

  In the second plate portion 13f, a link hole 13g into which the link shaft 22 provided in the first plate portion 13e of the adjacent support arm 13 is inserted is formed. When the link shaft 22 is inserted into the link hole 13g of the adjacent support arm 13, the adjacent support arms 13 are linked and move together. In the present embodiment, the eighteen support arms 13 are in a state of being linked by adjacent ones.

  FIG. 8 shows a state in which the first to eighteenth support arms 13 are set in a state where adjacent ones are linked, and the tenth support arm 13 is set so as to link to the eleventh support arm 13. Is shown.

  The delivery portion 14 includes a main body portion 14a rotatably provided around the same axis as the first guide portion 11a of the first placement portion 11, an arm portion 14b extending in the radial direction of the first placement portion 11, and a pressing roller. 14c. The pressing roller 14c is rotatably attached to the lower surface of the tip of the arm 14b. The main body 14a is rotated by a motor 35 (see FIG. 14). The drive of the motor 35 is controlled by the control device 16.

  The main body part 14a is rotatably inserted into the opening 11b of the first arrangement part 11. The pressing roller 14c is inserted into and guided by the first guide portion 11a.

  As shown in FIGS. 8 and 9, positioning recesses 13h are formed on the bottom surface of the first arm portion 13a and the bottom surface of the second holder 13d, respectively.

  The collective device 10 includes an insertion positioning unit 25 that positions one support arm 13 at an insertion position (a position where the first support arm 13 is arranged in FIG. 5) and 18 support arms 13 at a holding position (FIG. 6 at a position where the first to eighteenth support arms 13 are arranged). In FIG. 7, illustration of the insertion positioning unit 25 and the holding positioning unit 26 is omitted.

  The insertion positioning portion 25 includes an insertion positioning plate 25a and two tapered insertion positioning pins 25b provided upright on the insertion positioning plate 25a. The insertion positioning section 25 is moved in the vertical direction by an insertion moving mechanism 27 having a motor, gears, and the like (see FIG. 14). The insertion positioning pin 25b is inserted into the positioning recess 13h of the support arm 13 at the insertion position.

  The drive of the insertion moving mechanism 27 is controlled by the control device 16. The control device 16 normally moves the insertion positioning portion 25 downward so that the insertion positioning pin 25b is not inserted into the positioning recess 13h. Note that the insertion positioning section 25 and the insertion moving mechanism 27 may not be provided.

  The holding / positioning section 26 includes a holding / positioning plate 26a and 36 tapered holding / positioning pins 26b erected on the holding and positioning plate 26a. The holding and positioning unit 26 is moved in the vertical direction by a holding and moving mechanism 28 (see FIG. 14) having a motor, gears, and the like. The holding positioning pins 26b are inserted into the positioning recesses 13h of each of the 18 support arms 13 when the 18 support arms 13 are at the holding position (see FIG. 6).

  The driving of the holding and moving mechanism 28 is controlled by the control device 16. The control device 16 normally moves the holding / positioning portion 26 downward so that the holding / positioning pin 26b is not inserted into the positioning recess 13h. Note that the holding positioning unit 26 and the holding moving mechanism 28 may not be provided.

  As shown in FIG. 9, in the collecting device 10, the leg 4a inserted into the first holder 13c and the leg 4a inserted into the second holder 13d are separated from the first holder 13c and the second holder 13d. A pull-out prevention plate 31 for preventing the slip-out is provided. The removal prevention plate 31 is formed in an arc shape that passes between the first holder 13c and the second holder 13d. In FIG. 8, illustration of the pull-out prevention plate 31 is omitted.

  Even when the respective leg portions 4a inserted into the first holder 13c and the second holder 13d move in the radial direction of the first arrangement portion 11, the leg portions 4a abut on the pull-out prevention plate 31. Thereby, the leg 4a is prevented from falling out of the first holder 13c and the second holder 13d. Note that the removal prevention plate 31 may not be provided.

  In the initial state shown in FIG. 10, the first support arm 13 is located at the insertion position where the coil segment 4 transported by the corsegment transport device (not shown) is inserted.

  When the motor 35 is driven by the control device 16 and the main body portion 14a of the feeding portion 14 is rotated in the counterclockwise direction D1, the pressing roller 14c moves counterclockwise along the first guide portion 11a of the first disposition portion 11. It rolls in D1 and presses the base 21 of the eighteenth support arm 13 in the counterclockwise direction D1.

  When the base portion 21 of the eighteenth support arm 13 is pressed in the counterclockwise direction D1, the base portion 21 rolls in the counterclockwise direction D1 along the first guide portion 11a of the first disposition portion 11, and the eighteenth support arm 13 Rotates in the counterclockwise direction D1.

  When the eighteenth support arm 13 rotates in the counterclockwise direction D1, the seventeenth support arm 13 linked to the eighteenth support arm 13 also rotates in the counterclockwise direction D1. Similarly, the sixteenth to first support arms 13 also rotate in the counterclockwise direction D1.

[Coil segment set]
When assembling a plurality of (18) coil segments 4 at positions corresponding to the slots 2a of the slots of the stator core 2 by using the assembling device 10, the control device 16 first sets the positions as shown in FIGS. , The first support arm 13 is set at the insertion position. 10 to 13, illustration of the upper cover 15 is omitted.

  Next, the control device 16 drives the insertion moving mechanism 27 to move the insertion positioning portion 25 upward, and moves the insertion positioning pin 25b to the position of the support arm 13 (first support arm 13) at the insertion position. It is inserted into the recess 13h (positioning control). Thereby, the first support arm 13 can be positioned at the insertion position. The control device 16 maintains the positioning state in which the insertion positioning pin 25b is inserted into the positioning recess 13h of the first support arm 13 at the insertion position for a predetermined time (for example, one second) (maintenance control).

  During one second when the first support arm 13 is in the positioning state, the coil segment transport device transports the coil segment 4 and moves the pair of legs 4a, 4a to the first holder 13c of the first support arm 13 and It is inserted into the second holder 13d (insertion control).

  After maintaining the positioning state for one second, the control device 16 drives the insertion moving mechanism 27 to move the insertion positioning section 25 downward, and moves the insertion positioning pin 25b to the support arm 13 (first first position) at the insertion position. Pull out from the positioning recess 13h of the support arm 13) (removal control).

  Next, the control device 16 drives the motor 35 to rotate the delivery unit 14 from the position shown in FIG. 10 to the position shown in FIG. 11 by a set angle (for example, 15 °) (rotation control). Thereby, the second support arm 13 rotates to the insertion position.

  Next, the control device 16 performs the above-described positioning control on the second support arm 13. Thereby, the second support arm 13 can be positioned at the insertion position. Then, the maintenance control is performed.

  During one second when the second support arm 13 enters the positioning state, the coil segment transport device performs the above-described insertion control on the second support arm 13 (insertion control).

  Then, the control device 16 performs the removal control. Thereby, the second support arm 13 becomes rotatable.

  Next, as shown in FIG. 12, the control device 16 performs the rotation control, the positioning control, the maintenance control, and the removal control on the third support arm 13. The coil segment transport device performs the insertion control on the third support arm 13 while performing the maintenance control.

  Next, as shown in FIG. 13, the control device 16 performs the rotation control, the positioning control, the maintenance control, and the removal control on the fourth support arm 13. The coil segment transport device performs the insertion control on the fourth support arm 13 while performing the maintenance control.

  In the state shown in FIGS. 12 and 13, the first support arm 13 and the second support arm 13 are rotated clockwise by the base 21 rolling along the second guide portion 12 a of the second arrangement portion 12. Rotate to D2. In the present embodiment, the moving unit that moves the base 21 of each of the first to eighteenth support arms 13 along the shape of the first guide unit 11a and the second guide unit 12a includes the delivery unit 14, the motor 35, It is configured with.

  In the state shown in FIGS. 12 and 13, the first holder 13c and the second holder 13d are located radially inside the second guide portion 12a with respect to the base 21. Therefore, when the first support arm 13 and the second support arm 13 rotate clockwise D2, the first holder 13c and the second holder 13d of the first support arm 13 and the first holder 13c of the second support arm 13 are rotated. The holder 13c and the second holder 13d approach each other.

  In the state shown in FIG. 13, the head 4b of the coil segment 4 supported by the first support arm 13 and the head 4b of the coil segment 4 supported by the second support arm 13 overlap.

  The control device 16 also performs the rotation control, the positioning control, the maintenance control, and the removal control on the fifth to eighteenth support arms 13. The coil segment transfer device also performs the insertion control on the fifth to eighteenth support arms 13. As a result, the coil segment 4 is supported by all of the first to eighteenth support arms 13. From this state, the control device 16 further drives the motor 35 to rotate the delivery unit 14 by a set angle (for example, 30 °). Thereby, as shown in FIG. 15, the coil segments 4 supported by each of the first to eighteenth support arms 13 are assembled so as to overlap.

  Next, the control device 16 drives the holding / moving mechanism 28 to move the holding / positioning portion 26 upward, and attaches 36 holding / positioning pins 26b to each of the first to eighteenth support arms 13. It is inserted into the formed 36 positioning recesses 13h in total. Accordingly, the first to eighteenth support arms 13 are positioned at the holding positions, and the coil segments 4 supported by the first to eighteenth support arms 13 are also positioned. This positioned position is a position corresponding to the slot 2a of the stator core 2.

  A coil segment assembling device (not shown) holds and conveys the 18 coil segments 4 assembled so as to overlap, and inserts the leg 4 a into the slot 2 a of the stator core 2.

  Since the eighteen coil segments 4 assembled by the assembly device 10 are positioned at positions corresponding to the slots 2a, the eighteen coil segments 4 can be reliably inserted into the slots 2a.

  In the above-described embodiment, the base 21 is guided by the first guide portion 11a and the second guide portion 12a. However, a structure in which a hole guides a convex portion or a structure in which a protrusion guides a hole or a groove (for example, , A rail and two rollers sandwiching the rail).

  In the above embodiment, the base 21 of each of the first to eighteenth support arms 13 is moved along the shapes of the first guide part 11a and the second guide part 12a by the delivery part 14 rotated by the motor 35. However, without being limited to this, the structure for moving the base 21 can be changed as appropriate. For example, the connecting portion connected to the first support arm 13 may be replaced with the first guide portion 11a and the second guide portion. The first to eighteenth support arms 13 may be pulled by moving along the shape of 12a.

  In the above embodiment, the adjacent support arms 13 are linked, but they may not be linked.

  In the above embodiment, the support arm 13 is sandwiched between the first and second arrangement portions 11 and 12 and the upper cover 15, but may not be interposed.

  In the above-described embodiment, the present invention is applied to an assembly device that overlaps and assembles the U-shaped coil segments 4, but a target member having two legs and a connecting portion that connects the two legs. It can be implemented as long as it is an aggregation device that aggregates. For example, the present invention may be applied to an assembling apparatus for assembling H-shaped or V-shaped target members.

DESCRIPTION OF SYMBOLS 1 ... Stator, 2 ... Stator core, 2a ... Slot, 2b ... Slit, 3 ... Coil, 4 ... Coil segment, 4a ... Leg, 4b ... Head, 10 ... Collecting device, 11 ... 1st arrangement | positioning part, 11a ... No. 1 guide portion, 12a second guide portion, 12 second placement portion, 13 support arm, 13c first holder, 13d second holder, 14 delivery portion, 15 upper cover, 16 control device, Reference numeral 21: base portion, 22: link shaft, 25: insertion positioning portion, 26: holding positioning portion, 31: pull-out prevention plate

Claims (9)

An assembling device for assembling a plurality of target members having two legs and a connecting portion connecting the two legs,
A support portion that supports the leg portion of the target member, and a plurality of support arms having a base portion that is provided separately from the support portion,
A guide unit for guiding the base,
A moving unit that moves the base of each of the plurality of support arms along the shape of the guide unit;
With
The guide section,
The base is formed in a first arc shape, and the base of each of the plurality of support arms is connected to the first arc in a state where the support is located outside the base in the radial direction of the first arc. A first guide portion that guides to be movable in a circumferential direction;
A center of curvature is formed in a second arc shape on the opposite side of the center of curvature of the first arc with the guide portion interposed therebetween, and is connected to the first guide portion, and each of the plurality of support arms is A second guide portion for guiding the base portion movably in a circumferential direction of the second arc. The collecting device according to claim 1,
The first guide portion and the second guide portion are formed by grooves,
The said base part is formed with the roller which rolls the said groove | channel, The assembly device characterized by the above-mentioned. The collecting device according to claim 2,
The assembly device, wherein the support arm includes a connecting portion that connects to the roller of the adjacent support arm. In the collective device according to any one of claims 1 to 3,
An assembly device comprising: a holding portion that holds the support arm in a vertical direction. The collective apparatus according to any one of claims 1 to 4,
The apparatus according to claim 1, wherein the support unit includes a first support unit that supports one of the two legs, and a second support unit that supports the other of the two legs. The collective device according to any one of claims 1 to 5,
An assembly device comprising a pull-out prevention mechanism for preventing the leg portion from falling out of the support portion. The collecting device according to claim 6,
The support unit includes a first support unit that supports one of the two legs, and a second support unit that supports the other of the two legs,
The pull-out prevention mechanism includes a pull-out prevention plate provided between the first support portion and the second support portion and disposed between one of the leg portions and the other of the leg portions. A collecting device characterized by the above-mentioned. The collective device according to any one of claims 1 to 7,
An assembly device, comprising: a positioning section that positions each of the support sections of the plurality of support arms at a preset position. A method for assembling a plurality of target members having two legs and a connecting portion that connects the two legs,
A supporting portion for supporting the leg of the target member, and a supporting step of supporting the target member by a plurality of support arms having a base provided separately from the supporting portion;
Each of the plurality of support arms is provided on a guide portion that guides the base portion, is formed in a first arc shape, and the support portion is located outside the base portion in the radial direction of the first arc. An arranging step of arranging the plurality of support arms by a first guide portion that guides the base portion so as to be movable in a circumferential direction of the first arc;
The guide portion is provided with a center of curvature on the opposite side of the center of curvature of the first arc with respect to the guide portion, is formed in a second arc shape, and is connected to the first guide portion, By moving the base of each of the plurality of support arms to a second guide portion that guides the base of each of the plurality of support arms so as to be movable in the circumferential direction of the second arc, the plurality of support arms are provided. An assembly step of assembling arms and assembling the plurality of target members,
An aggregation method comprising: